The only reasons I can think of is mark yelling “Dad!” after he went to the Flaxan dimension or just intuition due to them sharing the same powers. Is there something I missed?

  • princesamurai45@alien.topB
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    10 months ago

    The Flaxan fight was where Robot and the team learn about it. William learns after finding out Mark is invincible in the college episode. Cecil already knew. Not sure if the public at large know he is Omni-Man’s son though.